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Session variable and Show/Hide expression

06-10-2010, 03:09 PM

I have this code in Show/Hide expression property on the client side to hide a button. Here is the code: costctr <> "session.__protected__ulink" .or. costctr <> "200515" this equates to True when I tested it on the Interactive and the button is hidden, but when I change the signon to another user who has a different costctr the button still hides.

All I want to say is: if the session variable is costctr "200515" the button should show if not then the button should hide

Should I be using costctr= session.__protected__ulink as part of the code?

Anyway, US will beat England on Saturday in the World Cup soccer. :). Thats my prediction. Lets go USA.
Thanks

Comment

I have this code in Show/Hide expression property on the client side to hide a button. Here is the code: costctr <> "session.__protected__ulink" .or. costctr <> "200515" this equates to True when I tested it on the Interactive and the button is hidden, but when I change the signon to another user who has a different costctr the button still hides.

All I want to say is: if the session variable is costctr "200515" the button should show if not then the button should hide

Should I be using costctr= session.__protected__ulink as part of the code?

Anyway, US will beat England on Saturday in the World Cup soccer. :). Thats my prediction. Lets go USA.
Thanks

session variables (by definition) only exist on the server. they do not exist on the client (where only javascript variables can exist). therefore you cannot use session variable in a client side show/hide expression.

Comment

While my earlier statement that session variables can't be used in a client-side show hide expression is correct, I have just added an ability to reference session variables in client-side expression. It will be in the first update for the recently released v10.5

You can get a pre-release of this here:

This file contains a pre-release of the updates to the aex file that will be in the next update.
Exit from Alpha Five and unzip this file into your A5V10 program folder.
You must also unzip it into the A5V10 Server folder if you are running the stand-alone App Server.http://downloads.alphasoftware.com/a...te/aex_v10.zip

This file contains an update to the exe and dll files. Exit Alpha Five and unzip into your program folder.
You must also unzip it into the A5V10 Server folder if you are running the stand-alone App Server.
You can also unzip these files into your A5V10 Runtime folder.http://downloads.alphasoftware.com/a...dllexe_v10.zip

Features
Grid Component - Detail View - Client-Side Expressions - data.rowNumber - Client-side expressions (used in calculated fields, show/hide expressions, enable expressions, conditional style expressions, and conditional image expressions) that reference the special 'data.rowNumber' variable will now work correctly when the record is in enter mode. Previously the value of data.rowNumber was always set to 1. Now, it is set to 1 for an existing record and -1 for a new record. So, for example, the following enable expression for an field will allow a user to enter a new value in the field, but not edit an existing value:
data.rowNumber = -1

Client-Side Expressions - Session Variables - Client-side expressions are evaluated in the Browser using Javascript. They cannot reference session variables because session variables are server-side variables. Now, however, you can specify that certain session variables should be 'published' to the client. The 'published' session variables can then be referenced in your client side expressions. For example, the following show/hide expression will show a field is the session variable 'company' is equal to 'Alpha', otherwise the field will be hidden.
SESSION.COMPANY = "Alpha"

Notice that the session variable must be UPPER CASE!

Grid Component - Grid Methods - .showGridColumn() Method - A new method has been added to the Grid object that allows you to dynamically show/hide columns in the Grid. The method takes two arguments: the name of the Grid column (which is the field name of the field shown in the column - with spaces in the field name replaced with underscores), and a flag which is true or false, depending on whether you want to show or hide the column.
The following example hides the 'Address' column in the Grid. Notice that the grid column name must be UPPER CASE.
{grid.object}.showGridColumn('ADDRESS',false);

Comment

conditional style can be applied at the cell level, the control level, or both. you need to choose the correct level where you want your conditional style to apply.

What I am trying to accomplish is that I would like the text color of a disabled textbox contol to be black not light grey.

I am sure I understand the different levels, however, when the control is disabled the text color is light grey no matter what the settings of the conditional style are. Is there another way to accomplish this or should I add this to the wish list?

Comment

What I am trying to accomplish is that I would like the text color of a disabled textbox contol to be black not light grey.

I am sure I understand the different levels, however, when the control is disabled the text color is light grey no matter what the settings of the conditional style are. Is there another way to accomplish this or should I add this to the wish list?

you have no control over the color of text in a disabled control. the browser sets it to be grey.